Assay device



FIG. 1 is a front view showing a new design of an assay device.

FIG. 2 is a left view showing the new design of the assay device.

FIG. 3 is a right view showing the new design of the assay device.

FIG. 4 is a back view showing the new design of the assay device.

FIG. 5 is an enlarged top view showing the new design of the assay device; and,

FIG. 6 is an enlarged bottom view showing the new design of the assay device.

The broken lines depict portions of the assay device that form no part of the claimed design. 

CLAIM The ornamental design for an assay device, as shown and described. 